Gas-stove.



No. 720,771. P-ATENTED FEBPl'Z, 1903.

J. F. & F. 0. ADAMS & E. E. FREDERICK.

GAS STOVE.

APPLICATION FILED MAY 23, 1902 no MODEL 2 SHEBTsfSHBET -1.

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I J. F. & F. O. ADAMS 8: E. E. FREDERICK.

GAS STOVE. APPLIUATION FILED MAY 23, 1902.

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UNITED STATES PATENT Fries.

JULIUS F. ADAMS AND FRIEDERIGH O. ADAMS, OF ALLEGHENY, AND EDWIN E. FREDERICK, OF AVALON, PENNSYLVANIA.

GAS-STOVE.

SPECIFICATION forming part of Letters Patent No. 720,771, dated February 1'7, 1 903.

Application filed May 28, 1902. Serial No. 108,715. (No model.)

f0 all whom, it may concern..-

Be it known that we, JULIUS F. ADAMS and FRIEDERIOH O. ADAMS, residing at Allegheny, and EDWIN E. FREDERICK, residing at Avalon, in the county of Allegheny and State of Pennsylvania, citizens of the United States, have invented certain new and useful Improvements in Gas-Stoves, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to gas-stoves, and the primary object thereof is to provide acornpact stove having large heat producing and radiating capacity under a minimum consumption of gas.

A further object is to provide a burner of improved construction.

The invention consists in the novel structural features and combination of parts hereinafter fully described and claimed,and illustrated by the accompanying drawings, where-- Figure 1 is a front elevation of the improved stove. Fig. 2 is a top plan view, partly in section, on line 2 2 of Fig. 3. Fig. 3 is a vertical longitudinal section on line 3 3 of Fig. 4. Fig. 4 is a vertical cross-section on line 4 4 of Fig. 3. Fig. 5 is a sectional plan View on line 5 5 of Fig. 3.

Referring to the drawings, the open-bottom box-like stove body or frame consists of the side walls 2, back 3, open top 4:, and enlarged open front 5, all formed, preferably, of sheet metal.

6 is the vertical forwardly-inclined fireboard positioned forward from back 3 and at its upper end intersecting the rear edge of the horizontal partition 7, the latter being below open top 4, thus inclosing the back and top of the fire or combustion chamber and forming the right-angle heat radiating and circulating space 8 at the back and top of the stove. A backward offset 9 is formed in the upper portion of the fire-board,and extending outwardly therefrom through back 3 is fine connection 10.

11 is the base-burner,of box or tubular form, arranged between sides 2, being supported thereby, preferably, by short bolts 12.

13 is the mixer, and let the valved gas conncction.

Opening through the upper and lower faces of the burner are the vertical tubes or thimbles 15, and uniting therewith are the lower ends of vertical tubes 16,depending from and opening through partition 7. These tubes are formed with a down Ward taper and closely fit thimbles 15 and may be supported in the main thereby, though they are preferably secured at their upper ends to partition 7, being sealed in the openings of the latter to prevent the gases and products of combustion escaping into space 8. Tubes 16 are immediately in front of the fire-board, with the tubes and board provided with the usual asbestos surface or covering. Burner 11 is constructed, preferably, with a flat top, in which are formed the curved series of openings 17 around thimbles 15 for emitting gas which burns upwardly around tubes 16 and near the rear longitudinal edge the perforations 18 for emitting the gas which burns upwardly over fire-board 6. The stove-base being open front and back, air is admitted in abundance for mixer 13; also for upward circulation through the burner and tubes 16 and through space 8. With the gas burning around the exterior of tubes 16 they become highly heated, heating the air therein and inducing a rapid upward circulation which discharges in space 8 immediately below open top 4. By this means also circulation through space Sis stimulated. Tubes 16 are preferably downwardly tapered, which obviously augments their efficiency. The burner is provided with the usual baffleplate or partition 11 above mixer 13, and fireboard 6 is formed at the top with the central extension 6' in front of the flue connection, whereby the gas is evenly distributed and the draft so regulated as to cause an even or uniform combustion throughout all portions of the stove.

We claim- 1. An improved gas stove comprising a frame having a fire-space, an upright fireboard constituting the rear wall of said firespace, a series of upright air-circulating tubes in front of and apart from the fire-board, and a horizontal burner at the base of the tubes and fire-board, said burner having gas-emitting opeuings' around the tubes and additional openings at the rear of said tubes immediately in front of the fire-board, substantially as described.

2. An improved gasstove comprising a frame having a fire-space, an upright fireboard constituting the rear wall of said space, aseries of upright air-circulating tubes in front of and apart from the fire-board, and a horizontal tubular or box burner at the baseof the fire-board and tubes, the burner being formed with vertical openings with which the lower ends of the tubes connect, whereby air is supplied to the tubes from beneath the burner, the top face of the burner being formed with gas-emitting openings around the tubes also back of the tubes adjacent the fire-board, substantially as described.

3. An improved gas stove comprising a frame having a fire-space, a fire-board therein, a narrow tube-like burner extending across the fire-space at the base of the fire-board and formed with through-and-through passages, and a series of upright air-circulating tubes immediately in front of the fire-board which at their lower ends connect with the said burner-openings and at their upper ends open through a wall of the fire-space, substantially as described.

4. An improved gas -stove comprising a frame having a fire-space,a fire-board therein, a narrow tube-like burner extending across the fire-space at the base of the fire-board and formed with through-and-through passages, and a series of upright downwardly-tapering air-circulating tubes immediately in front of and apart from the fire-board, the lower ends of the tubes connecting with said burner-passages and their upper ends opening through a Wall of the fire-space, substantially as described.

In testimony whereof we affiX our signatures in presence of two witnesses.

JULIUS F. ADAMS. FRIEDEBICH O. ADAMS. EDWIN E. FREDERICK.

Vitnesses:

J. M. NEsBIT, ALEX. S. MABON. 

